Neurology News

New HIV Finding Dampens Hopes of an Impending Cure

March 27, 2015

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New Finding Dampens Hopes of an HIV Cure

New research from Yale University shows that HIV can establish itself in the brain as soon as four months after initial infection, dampening the hopes of an impending cure for a disease that afflicts more than 35 million people. Within two years of infection, a genetically distinct version of HIV replicates in the brains of […]

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Carbon Nanotube Fibers Provide Two-Way Communication with Neurons

March 25, 2015

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Carbon Nanotube Fibers Make Superior Links to Brain

New research from Rice University reveals that carbon nanotube fibers provide a two-way connection with neurons and show promise for treating patients with neurological disorders. Carbon nanotube fibers invented at Rice University may provide the best way to communicate directly with the brain. The fibers have proven superior to metal electrodes for deep brain stimulation […]

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DNA Mutations Can Be Good in Brain Tumors

March 25, 2015

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Possible Personalized Treatments for More Aggressive Forms of Brain Cancer

New research from Yale University reveals that it may be possible to develop personalized treatments for more aggressive forms of brain cancer. DNA mutations can cause cancer but in some cases, more mutations may mean a better prognosis for patients. A Yale-led comprehensive genomic analysis of more than 700 brain tumors has revealed one such […]

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New Technique Offers Direct Stimulation of Neurons Without External Connections

March 13, 2015

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New Technique Could Lead to Long-Lasting Localized Stimulation of Brain Tissue

Using external magnetic fields and injected magnetic nanoparticles, a new technique developed by researchers at MIT could lead to long-lasting localized stimulation of brain tissue without external connections. This video shows a calcium ion influx into neurons as a result of magnetothermal excitation with alternating magnetic fields in the presence of magnetic nanoparticles. Neurons on […]

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Neuroscientists Find That Cognitive Skills Peak at Different Ages

March 10, 2015

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Cognitive Skills Peak at Different Ages Across Adulthood

New research from neuroscientists at MIT and Massachusetts General Hospital reveals that different parts of the brain work best at different ages. Scientists have long known that our ability to think quickly and recall information, also known as fluid intelligence, peaks around age 20 and then begins a slow decline. However, more recent findings, including […]

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Yale Study Reveals Connection Between Genes That Contribute to Autism

March 10, 2015

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Study Shows Connection Between Key Autism Risk Genes

A newly published study from Yale University reveals an important connection between key autism risk genes in the human brain, a major step toward understanding how brain development goes awry in some individuals with the disorder. The research shows that CHD8, a gene that is strongly linked to autism, acts as a master regulator in […]

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Hypothalamic Agrp Neurons Also Control Compulsive Behaviors

March 6, 2015

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Study Shows Hunger Neurons also Control Compulsive Behaviors

A newly published study from Yale University shows that in the absence of food Agrp neurons trigger foraging and repetitive behaviors in mice. In the absence of food, neurons that normally control appetite initiate complex, repetitive behaviors seen in obsessive-compulsive disorder (OCD), and anorexia nervosa, according to a new study by Yale School of Medicine […]

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Yale Maps Evolutionary Changes of the Human Brain

March 6, 2015

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Researchers Map Switches That Shaped the Evolution of the Human Brain

New research from Yale University reveals a detailed catalog of human-specific changes in gene regulation and pinpoints several biological processes potentially guided by these regulatory elements that are crucial to human brain development. Thousands of genetic “dimmer” switches, regions of DNA known as regulatory elements, were turned up high during human evolution in the developing […]

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Scientists Discover a Gene for Brain Size

March 4, 2015

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Scientists Identify a Gene for Human Brain Size

A team of researchers has identified for the first time a gene (ARHGAP11B) that is only present in humans and contributes to the reproduction of basal brain stem cells, triggering a folding of the neocortex. About 99 percent of human genes are shared with chimpanzees. Only the small remainder sets us apart. However, we have […]

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Possible Signs of Progress in the Fight Against Parkinson’s

March 4, 2015

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Signs of Progress Against Parkinson’s

By using induced pluripotent stem cells, researchers have markedly reduced the symptoms Parkinson’s disease in primates. Harvard Stem Cell Institute (HSCI) researchers at University-affiliated McLean Hospital have taken what they describe as an important step toward using the implantation of stem cell-generated neurons as a treatment for Parkinson’s disease. Ole Isacson and colleagues reported that […]

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Yale Neurobiologists Discover Surprising Trigger of New Brain Cell Growth

February 19, 2015

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Researchers Find Trigger of New Brain Cell Growth

A newly published study from Yale University shows that adult hippocampal neural stem cells (NSCs) express vascular endothelial growth factor receptor (VEGFR) 3 and its ligand VEGF-C, which activates quiescent NSCs to enter the cell cycle and generate progenitor cells. Scientists have discovered that the human brain can produce new neurons, but exactly how those […]

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Marijuana Munchies: How the Appetite Center of the Brain Responds to Marijuana

February 18, 2015

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Marijuana Munchies How the Brain Flips the Hunger Switch

A new study from Yale University observes how the appetite center of the brain responds to marijuana, revealing what drives the hunger brought about by cannabis and how that same mechanism that normally turns off feeding becomes a driver of eating. The “munchies,” or that uncontrollable urge to eat after using marijuana, appear to be […]

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Nano-Antioxidants Quickly Neutralize Superoxides

February 12, 2015

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Study Shows How Particles Quench Damaging Superoxides

A new Rice-led study reveals how nanoparticles can quickly neutralize superoxides that are overexpressed by the body’s cells in response to an injury. Injectable nanoparticles that could protect an injured person from further damage due to oxidative stress have proven to be astoundingly effective in tests to study their mechanism. Scientists at Rice University, Baylor […]

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Key Process in Brain Development Identified

February 6, 2015

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Yale Identifies Key Process in Brain Development

By studying miR-107 in zebrafish, Yale researchers have discovered that miR-107 plays a key role in early brain development, and perhaps in the development of brain-related disease. MicroRNA are the tiny non-coding RNA molecules that help determine whether genes are expressed or silenced. One particular microRNA — miR-107 — plays a key role in early […]

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New Research Shows Seizures Knock Out Brain Arousal Centers

February 5, 2015

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Seizures Knock Out Brain Arousal Centers

Researchers from Yale University found that during seizures the arousal centers in the brain stem are actually suppressed, leading to a loss of consciousness. People with epilepsy who experience focal seizures sometimes remain mobile but are unable to hear or respond to their environment. Yale School of Medicine researchers have discovered a surprising explanation for […]

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Brain Scans Help Reveal How the Brain Ignores Distractions

February 4, 2015

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How the Brain Ignores Distractions

By scanning the brains of people engaged in selective attention to sensations, researchers from Brown University have learned how the brain appears to coordinate the response needed to ignore distractions. Providence, Rhode Island (Brown University) — When we concentrate on something, we also engage in the unsung, parallel act of purposefully ignoring other things. A […]

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Yale Research Shows Immune Cells Are an Ally, Not Enemy, in Battle Against Alzheimer’s

January 29, 2015

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Study Shows Immune Cells Are An Ally Against Alzheimer’s

New research in battle against Alzheimer’s shows that brain immune cells (called microglia) seem to protect the brain by keeping amyloid plaques corralled, and are not re responsible for inflammation and damage to surrounding brain cells as previously thought. Beta-amyloid is a sticky protein that aggregates and forms small plaques in the brains of the […]

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